<!DOCTYPE html>
<html lang="en"
      xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
    <head>
        <meta charset="UTF-8"/>
        <title>home</title>
    </head>
    <body>
    <h3 th:inline="text">Hello <span sec:authentication="name" style="color:green;"></span></h3>
    <div>
    </div>

    </body>
</html>